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Commit 20e5c748 authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm63xx',... 

Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/bcm63xx', 'spi/fix/doc', 'spi/fix/fsl-dspi' and 'spi/fix/ti-qspi' into spi-linus
parents 6f7da290 7094576c 0b85a842 b56ffae8 cddebdd1 967d6941

drivers/spi/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -457,6 +457,7 @@ config SPI_OMAP24XX 


config SPI_TI_QSPI

	tristate "DRA7xxx QSPI controller support"

	depends on HAS_DMA

	depends on ARCH_OMAP2PLUS || COMPILE_TEST

	help

	  QSPI master controller for DRA7xxx used for flash devices.

drivers/spi/spi-atmel.c

+23 −1
Original line number Diff line number Diff line
@@ -269,6 +269,7 @@ struct atmel_spi_caps { 
	bool	is_spi2;

	bool	has_wdrbt;

	bool	has_dma_support;

	bool	has_pdc_support;

};



/*
@@ -1426,7 +1427,28 @@ static void atmel_get_caps(struct atmel_spi *as) 


	as->caps.is_spi2 = version > 0x121;

	as->caps.has_wdrbt = version >= 0x210;

#ifdef CONFIG_SOC_SAM_V4_V5

	/*

	 * Atmel SoCs based on ARM9 (SAM9x) cores should not use spi_map_buf()

	 * since this later function tries to map buffers with dma_map_sg()

	 * even if they have not been allocated inside DMA-safe areas.

	 * On SoCs based on Cortex A5 (SAMA5Dx), it works anyway because for

	 * those ARM cores, the data cache follows the PIPT model.

	 * Also the L2 cache controller of SAMA5D2 uses the PIPT model too.

	 * In case of PIPT caches, there cannot be cache aliases.

	 * However on ARM9 cores, the data cache follows the VIVT model, hence

	 * the cache aliases issue can occur when buffers are allocated from

	 * DMA-unsafe areas, by vmalloc() for instance, where cache coherency is

	 * not taken into account or at least not handled completely (cache

	 * lines of aliases are not invalidated).

	 * This is not a theorical issue: it was reproduced when trying to mount

	 * a UBI file-system on a at91sam9g35ek board.

	 */

	as->caps.has_dma_support = false;

#else

	as->caps.has_dma_support = version >= 0x212;

#endif

	as->caps.has_pdc_support = version < 0x212;

}



/*-------------------------------------------------------------------------*/
@@ -1567,7 +1589,7 @@ static int atmel_spi_probe(struct platform_device *pdev) 
		} else if (ret == -EPROBE_DEFER) {

			return ret;

		}

	} else {

	} else if (as->caps.has_pdc_support) {

		as->use_pdc = true;

	}

drivers/spi/spi-bcm63xx-hsspi.c

+1 −0
Original line number Diff line number Diff line
@@ -484,6 +484,7 @@ static const struct of_device_id bcm63xx_hsspi_of_match[] = { 
	{ .compatible = "brcm,bcm6328-hsspi", },

	{ },

};

MODULE_DEVICE_TABLE(of, bcm63xx_hsspi_of_match);



static struct platform_driver bcm63xx_hsspi_driver = {

	.driver = {

drivers/spi/spi-fsl-dspi.c

+2 −1
Original line number Diff line number Diff line
@@ -1032,7 +1032,8 @@ static int dspi_probe(struct platform_device *pdev) 
		goto out_master_put;



	if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE) {

		if (dspi_request_dma(dspi, res->start)) {

		ret = dspi_request_dma(dspi, res->start);

		if (ret < 0) {

			dev_err(&pdev->dev, "can't get dma channels\n");

			goto out_clk_put;

		}

drivers/spi/spi.c

+1 −1
Original line number Diff line number Diff line
@@ -2021,7 +2021,7 @@ static void devm_spi_unregister(struct device *dev, void *res) 
}



/**

 * dev_spi_register_master - register managed SPI master controller

 * devm_spi_register_master - register managed SPI master controller

 * @dev:    device managing SPI master

 * @master: initialized master, originally from spi_alloc_master()

 * Context: can sleep